Scale



G. WALKER Nov. 24; 1931.

SCALE Filed Nov. 14, 1927 lllllllllllliii IIIIIIIIHIUII 17 l I i 1 INVENTOR. b W 42 9 rduduum/ v ATTORNEYS.

Patented Nov. 24, 1931 r GEORGE TWALKER, or

BROOKLYN, NEW Yonmnssrenonro- 'lH-E .mcons nno'rnnnsicoi,

11m ortnnooxnyn, NEW YORK, A-conPonA'rIoN ormnw 2031;,

SCALE Application filed November 14,1927. Serial No.233,053.

Thisin vention relatesto a scale'ofthe overand under-weight type. i

:It is. an r obj ect of the invention to provide a device ofthischaracter, theparts of which will be relatively few in numberrand .indixviditally simple and rugged vin construction, these parts being'assembledto'furnish a scale operating. satisfactorily over long periods of time with freedomifrom mechanical difli- -1 culty;

It'is a further objectoftheinvention to furnish a scale whichimay be disposed upon, for example, a counter. andinwhich the .reglstration may be convenientlyviewed.v 3 With ;these'iand :EUI'thGI'QObjGCtS .in (mind reference ishad .tothe attached sheet of drawings; illustrating one practical embodiment of the invention: and .in which:

I Figured is aperspective view of the mechanism employedito connect the :beam with the registering mechanism. a i

Fig. 2 is an enlargedapartly sectionalctransverse view of the. scale,'1certain.of. the parts being broken awayto disclose underlying'construction, and .u

' Fig. 3 isa fragmentary, ipartly sectional side view of the 'iscaleypartsuas shownin Fig-2.1

, .It willibe noted that the scale, vas to the details ofits-pans or scoo'ps,.:1ts dial,'end of the @pointer, dash-pot, etc.,.h as 'not been illustrated. Ubviously, thesev several fparts may embrace any,v desired 7 construction, and GXCBPtmlDSOfaI' gas theyv are, necessary :to .a complete scale, form no part of the present invention.- c 1 V Thus, in; thes drawings the numeraLlO indicates a base from which a standard 11 extendszupwardly, this standard supporting, on "its'under side,: a'post12 which, may carry the endsrofz'a check'rod assembly 13. .Mounted upon the standard is whiclisupport: pivot blocks 15.- Bearing upon these blocks are thezpivots or knife'edge'membet-s16 -.of the scale beam 17, it beingfobservedthat the..latter-preferably has a central portion in the'form of-acollarlS.

' Mounted upon thestandard and extending within: thespace defined by the collar. .18 is 60 a housing 19, of any 1 desired; configuration when properly lset up,

a yoke 14:, the arms :of c

which, at itsupper end, may-support a suitably displayed, graduated-'dialwhich, inconjunction with a: pointerend, provides a registering mechanism (the latter structures not having been shown); I I

- In the embodiment 3 illustrated the housing has an inwardlyextending block 20- to which a bracket is secured in any desirable m anner.

This bracket conveniently embraces a base21 and-an arm 22,-the latter-being bent to extend, 'as'at 23, substantially parallel'tothe base 21. It willhere be observed that'the upper edgeof the bracket base-21 is preferably straight and that the block 20 has a ledge '24; that an operator may readily apply theabracket toextend properlywith respect to the houslng. The base 21 and inwardlyextending "portion 23 of the bracket pr ovide bearings for a shaft 25, the latter mounting arpinion 27 and the lower end of a pointer 26m The teeth of this pinion-are engaged by a=rack 28 the lowerend of which issecured to the scale beam. 7. ith' a view toassuring constant engagementbetween the teeth of the rack: and the pinion, a spring 29"is preferably employed --which:has one of its ends secured-to a-post 30, its opposite end beingattached to the rack, it being here noted"= th-at these parts,

this spring, in the embodiment--illustrated,

will= extend. at ri'ghti angles 1 to the rack body when 1 the pointer is in its neutral position.

iltlwillfurthermore beinoted'that the connection employedbetween thera'c kand the beam s preferablyiasfollows A bracket; 31 is I secured ate the beam and terminates in a pair. of ears 132: betweeniwhich the lower end of'the 'rack is pivetally supmeans of a pin 33. The'end of thifs=pin is bent to extendat right angles to ported by the body thereof and seats in :an under-cut notch 34; forming: a part of aicentral extenber, :this fmay be a" hieved readily by simply springing :the pin end from within: the notch which-bears againstthisedge so are so arranged that i -sion '35=.of:the bracketfil. Consequently,ithe pin" cannot .beiaccidentally loosened, but. if. it becomes :necessary Zt'o detach: the rack mem- Mounted at the upper end of the standard is a supporting and clamping assembly 36 Which adjustably secures the inner end of a spring flexion strip 37 in place. The outer end of this strip extends between a pair of arms 38 forming a part of the scale beam and is slidably engaged by a pair of opposed set screws 39 mounted one by each of the arms 38 and preferably having their inner ends reduced in order that undue friction between the parts may be avoided. Obviously, a scale of this nature may be constructed and assembled readily and when so assembled the parts may be adjusted in order that the registering mechanism will indicate what might be termed a zero condition when the scale parts are in neutral position, this registering mechanism indicating, accurately, overand under-weight according to Whether the scale parts are deflected to a point short of, or beyond their neutral position. With the parts thus adjusted it will be patent that the scale may be employed in connection with any desired weighing problems and that its parts will normallytend to assume a neutral position incident, primarily, to the fiexion strip 37 and, secondly, to the manner of mounting of the spring 29. It will be observed, in this connection, that the arm 22 of the bracket serves as a guide for the rack during the sliding movements of the latter. It will also be understood that the dashpot (not shown) may be associated with the beam or other desirable parts of the scale in order to dampen the movements of themechanisin when in use.

Thus, among others, the several objects specifically aforementioned are accomplished, but it will be understood that numerous changes in construction and rearrangement of the parts might be resorted to without de parting from the spirit of the invention as defined by the claims.

Having described my invention, what I claim as new and desire to secure by Letters Patent is 1. A scale including a rockingly mounted beam, a rack connected to move therewith and extending vertically therefrom, a pinion meshing with the teeth of said rack, a bracket, a shaft mounting said pinion and associated with said bracket, a registering mechanism part also secured to said shaft and a guide for said rack and forming a part of said bracket.

2. A scale including a rockingly mounted beam, a rack connected to move therewith and extending vertically therefrom, a pinion meshing with the teeth of said rack, a spring aving one of its ends connected to said rack, means fixedly mounting the opposite end of said spring to retain the teeth of the rack in engagement with said pinion and a pointer connected to said pinion.

3. A scale including a rockingly mounted beam, a rack connected to move therewith and extending vertically therefrom, a pinion meshing with the teeth of said rack, a spring having one of its ends connected to said rack, means fixedly mounting the opposite end of said spring to retain the teeth of the rack in engagement with said pinion and a pointer connected to said pinion, said spring extending to act in a direction substantially at right angles to the direction of movement of said rack when said pointer is in neutral position.

4. A scale including a rockingly mounted beam, a registering mechanism, a bracket presenting a substantially straight edge, means connecting said mechanism with said beam, a housing supporting said bracket and a ledge associated with said housing and bearing against the bracket edge to indicate the proper disposition of the parts with respect to each other.

A scale including a rockingly mounted beam, a registering mechanism and means connecting said mechanism with said beam and including a bracket, a connecting member, a pivot pin securing said bracket to said member, said bracket being formed wit-h a notch, the end of said pivot pin being disposed to be sprung into said notch, whereby to releasably retain said pin.

6. A scale including, in combination, a rockingly mounted beam, a registering mechanism movable in a plane substantially transverse to the movements of said beam, means connecting said beam with said registering mechanism and a flexion strip cooperating with said beam to normally retain the same in predetermined position.

7. A scale including, in combination, a rockingly mounted beam, a registering mechanism, a substantially horizontally extending fiexion strip, means fixedly mounting one of the ends of said strip, means connecting the opposite end thereof to said beam, means including a rack and pinion connecting said registering mechanism to said beam, and a spring disposed to act in a direction substantially at right angles to the direction of travel of the rack when the latter, the registering mechanism and said beam are in neutral positions.

8. A scale including a beam, means for rockingly mounting the same at a substantially central point, a registering mechanism including a pointer to move relatively to a dial, the movements of such latter elements eing in a plane transverse to the movements of said beam, means connecting said beam to said registering mechanism and the connection between said means and the beam being adjacent the point of mounting of the latter.

9. A scale including a beam, means for rockingly mounting the same at a substantially central point, a registering mechanism including a pointer to move relatively toa dial, the movements of such latter elements being in a plane transverse to the movements of sald beam, said registering mechanism extending above said beam at a point substantially in line with its point of mounting and means connecting said beam to said registering mechanism and extending to one side of said point of mounting.

10. A scale including a beam, means for rockingly mounting the same at a substantially central point, a registering mechanism including a pointer to move relatively to a dial, the movements of such latter elements being in a plane transverse to the movements of said beam, means connecting said beam to said registering mechanism, and means forming a part of said scale and tending normally to maintain said beam and mechanism in neutral positions. a

11. A scale including a beam, means for rockingly mounting the same at a substantially central point, a registering mechanism including a pointer to move relatively to a dial, the movements of such latter elements being in a plane transverse to the movements of said beam, means connecting said beam to said registering mechanism, and resilient means associated with said scale and connected to the parts thereof to offer increasing resistance to deflections of the beam and reg istering mechanism to positions beyond neutral.

12. A scale including, in combination, a beam, a rocking mounting for the same substantially intermediate its ends, a registering mechanism including a pointer movable with respect to a dial and the parts of said mechanism being disposed to have their movements in a plane substantially transverse to the plane of movement of said beam, means for actuating said registering mechanism to have a range of movement amplified in relation to the movements of the beam and means for connecting said beam to said registering mechanism.

13. A scale including a beam, a mounting for said beam disposed substantialy intermediate its ends, a registering mechanism including a pointer to move with respect to a dial and said mechanism being disposed to have its movements in a plane substantially transverse of the plane in which said beam moves, a flexion strip connected to said beam to normally maintain the same and said registering mechanisms in neutral positions, and means connecting said beam to said registering mechanism.

14:. A scale including a beam, a mounting for saidbeam disposed substantially intermediate its ends, a registering mechanism including a pointer to move with respect to a dial, said mechanism being disposed to have its movements in a plane substantially transverse of the plane in which said beam moves, a fiexion strip connected to said beam to normally maintainthe same and said registering mechanisms in neutral positions, and means connecting said beam to said registering mechanism, a fixed portion forming a part of said scale, means connecting one of the ends of said strip to said fixed part and means connecting the opposite end of said strip to said beam.

15. A scale including a beam, a mounting for said beam disposed substantially intermediate its ends, a registering mechanism including a pointer to move with respect to a dial, said mechanism being disposed to have its movements in a plane substantially trans-' verse of the plane in which said beam moves, a fiexion strip connected to said beam to normally maintain the same and said registering mechanisms in neutral positions, means connecting said beam to said registering mechanism, a fixed portion forming a part of said scale, means connecting one of the ends of said strip to said fixed part, means connecting the opposite end of said strip to said beam, one of said connections being rigid and mean forming a part of the other of said connections and having sliding contact with the opposite faces of said strip.

In testimony whereof I aifix my signature.

GEORGE WALKER. 

